#! /usr/bin/env python
# -*- coding: utf-8 -*-
# vim:fenc=utf-8
#
# Copyright © 2018 crane <crane@crane-pc>
#
# Distributed under terms of the MIT license.

from math import *
from sympy import *


def euler_identity():
    # print("identity [e ** (i*pi) - 1] is [%s]" % (e **(1j * pi) + 1))
    print("identity [E ** (I*PI) - 1] is [%s]" % (E **(I * pi) + 1))

def main():
    print("start main")
    euler_identity()

if __name__ == "__main__":
    main()
